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Radio control (of locomotives)
| Глоссарий в железнодорожной технике |
Some railways employ radio control of locomotives to reduce the manning required for shunting. this allows a locomotive to be moved from the ground and assists with safety as well as reducing the time required for coupling and uncoupling. radio control is also employed for long and heavy freight trains where locomotives are provided at the front and rear of trains to assist with power and braking. this allows a single driver in the leading cab to control all other locomotives without the need to provide control wiring throughout the train. in any case, on very long trains the voltage drop for hard wired control signals would make their use impossible. for braking, air brakes are standard. the propagation rate for a long train would be excessive using a brake pipe controlled only from the front. radio control allows the pipe to be controlled from several points on the train and speed up operation.
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Locomotive, английский
- A locomotive (with or without a tender) as far as it may apply, shall include a motor car, i.e. any railway vehicle equipped with electric motors for the working of a train.
- Локомотив
- Heavy road tractive unit, normally for drawing up to three trailers. see also road train. (terminology rarely used except in legal context).
Uncoupling, английский
Развинчивание буровых штанг
Throughout, английский
Impossible, английский
- A hateful word, generally supplanted among good seamen by “we`ll try.” a thing which is impossible in law, is pronounced to be all one with a thing impossible in nature.
- Admiral smyth calls this “a hateful word, generally supplanted among good seamen by ‘we’ll try.’” see difficulty.
Propagation, английский
- Прохождение, распространение (напр, радиоволн)
- An act of causing something to spread or multiply
- Распространение; размножение; продвижение; передача
- Распространение
- The process of distributing an index from a content index server to one or more web servers for the purposes of providing search.
- Advancement of a wave through a medium.
- Advancement of energy or a crack through a medium. see also brittle crack propagation; ductile crack propagation; fatigue crack propagation.
- Movement of a wave through a medium.7,21
Controlled, английский
- Управляемый; регулируемый
- Управляемый
- Подконтрольный (о предприятиях)
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Guard irons, английский
Steel arms suspended in front of the front wheels of a railway vehicle to prevent small obstructions getting under the wheels and derailing it.
Battery locomotive, английский
Some electric railways, particularly those with long underground sections like the london underground or the hong kong mass transit railway, employ battery powered locomotives for use on engineer`s trains at night when the main traction power supply is switched off. they are arranged to recharge from the traction power supply during the daytime when they are not required for engineer`s trains. their disadvantage is the time required out of service for recharging and the additional weight of the batteries.
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